C语言图书管理系统
成就一亿技术人 人气:0设计要求
设计图书管理系统
要求如下:
1.对书名,作者,编号,出版单位,出版日期,类别,存放位置进行添加、删除、修改
2.查询相关信息
3.保存所有信息
实现代码
#include <stdio.h> #include <string.h> #include <stdlib.h> #include <conio.h> typedef struct book /*定义结构体*/ { char bookname[100] ; /*书名*/ char writer[100]; /*作者*/ char classnumber[100]; /*编号*/ char publisher[100]; /*出版单位*/ char time[100]; /*出版日期*/ char type[100]; /*类别*/ char place[100]; /*存放位置*/ struct book *next; }Book; int mima() { int i=0; char user[10]="aa"; char Code[10]="123456"; char getuser[10]; char Getskey[10]; while(1) { printf("\t\t\t请输入账号:"); scanf("%s",getuser); printf("\t\t\t请输入密码:"); while(1) { Getskey[i]=getch(); if(Getskey[i]=='\r') break; else if(Getskey[i]=='\b') { if(i==0) continue; printf("\b"); printf(" "); printf("\b"); i--; } else { printf("*"); i++; } } Getskey[6]='\0'; if(strcmp(user, getuser)==0&&strcmp(Code, Getskey)==0) return 1; else { printf("\n\n\t\t\t账号不存在或密码输入错误,请重新输入\n"); i = 0; } } } void showmenu1() /*显示管理员菜单*/ { system("cls"); printf("\n\n\n\n\n"); printf("\t \n"); printf("\t 欢迎来到图书信息管理系统 \n"); printf("\t \n"); printf("\t \n"); printf("\t 主菜单 \n"); printf("\t \n"); printf("\t 1.录入图书信息 \n"); printf("\t \n"); printf("\t 2.删除图书信息 \n"); printf("\t \n"); printf("\t 3.修改图书信息 \n"); printf("\t \n"); printf("\t 4.查询图书信息 \n"); printf("\t \n"); printf("\t 5.显示所有图书信息 \n"); printf("\t \n"); printf("\t 6.返回登录界面 \n"); printf("\t \n"); printf("\t 7.保存数据并退出系统 \n"); printf("\t \n"); } void showmenu2() /*显示游客菜单*/ { system("cls"); printf("\n\n\n\n\n"); printf("\t \n"); printf("\t 欢迎来到图书信息管理系统 \n"); printf("\t \n"); printf("\t \n"); printf("\t 主菜单 \n"); printf("\t \n"); printf("\t 1.查询图书信息 \n"); printf("\t \n"); printf("\t 2.显示所有图书信息 \n"); printf("\t \n"); printf("\t 3.返回登录界面 \n"); printf("\t \n"); printf("\t 4.退出系统 \n"); printf("\t \n"); } int savebookdata(Book *head) /*将数据保存到文件中*/ { Book *p; FILE*fp; fp=fopen("D:\\java\\zuoye.txt","w"); p=head->next; do { fprintf(fp,"%s\t",p->bookname); /* 把这个结点的数据全部写入至文件内由于next指针不需要写入至文件,*/ fprintf(fp,"%s\t",p->writer); /*因此,数据大小就是sizeof(book)-sizeof(book*)总数据大小减去指针的大小 */ fprintf(fp,"%s\t",p->classnumber); fprintf(fp,"%s\t",p->publisher); fprintf(fp,"%s\t",p->time); fprintf(fp,"%s\t",p->type); fprintf(fp,"%s\t\n",p->place); fprintf(fp,"\n"); p=p->next; /*转换到下一个结点*/ }while(p!=NULL); fclose(fp); return 0; } void addnewbook(Book **head) /*录入图书信息*/ { int i; Book *p,*s; system("cls"); if(*head == NULL) { /* 如果表头为空,先为它分配内存 */ *head = (Book *)calloc(1, sizeof(Book)); p = *head; } else { /* 否则,就说明有内容,直接切换到尾结点 */ p = *head; while(p->next) p = p->next; } printf("\n\n\n"); printf("\t※※※※※※※※※※※※※※※※※※※※※※※※※※※※\n"); printf("\t\t\t请问添加几本书:"); scanf("%d",&i); printf("\t--------------------------------------------------------\n"); while(i) { s = (Book *)calloc(1, sizeof(Book)); /*为这个结点分配内存 */ printf("\t\t\t请输入书名:"); scanf("%s",s->bookname); printf("\t--------------------------------------------------------\n"); printf("\t\t\t请输入作者:"); scanf("%s",s->writer); printf("\t--------------------------------------------------------\n"); printf("\t\t\t请输入编号:"); scanf("%s",s->classnumber); printf("\t--------------------------------------------------------\n"); printf("\t\t\t请输入出版单位:"); scanf("%s",s->publisher); printf("\t--------------------------------------------------------\n"); printf("\t\t\t请输入出版日期:"); scanf("%s",s->time); printf("\t--------------------------------------------------------\n"); printf("\t\t\t请输入类别:"); scanf("%s",s->type); printf("\t--------------------------------------------------------\n"); printf("\t\t\t请输入存放位置:"); scanf("%s",s->place); printf("\t--------------------------------------------------------\n"); printf("\n"); printf("\t--------------------------------------------------------\n"); i--; p->next=s; /*保存输进去的这个结点*/ p=p->next; /*切换到下一个结点*/ p->next=NULL; /*最后一个结点为NULL*/ } printf("\t\t\t图书添加成功!!!\n"); system("pause"); } int readbookdata(Book **head) /*将数据从文件中读取*/ { int n; Book *s, *p; FILE *fp; fp=fopen("d:\\java\\zuoye.txt","r"); /* 如果文件打开失败,就返回-1 */ if(NULL == fp) { *head = NULL; return -1; } *head = (Book *)calloc(1, sizeof(Book)); p = *head; while (!feof(fp)) { s = (Book *)calloc(1, sizeof(Book)); /* 为下个结点分配内存空间 */ fscanf(fp,"%s",s->bookname); fscanf(fp,"%s",s->writer); fscanf(fp,"%s",s->classnumber); fscanf(fp,"%s",s->publisher); fscanf(fp,"%s",s->time); fscanf(fp,"%s",p->type); fscanf(fp,"%s\n",p->place); p->next=s; /*保存该结点*/ p=p->next; /*切换到下一个结点*/ p->next=NULL; /*保证最后一个结点为NULL*/ } fclose(fp);/* 关闭文件 */ return 0; } void deletebook(Book *head) /*删除图书信息*/ { system("cls"); int flag=0; char name[100],ch[10]; Book *p,*t; /* 如果表头为空 */ if(head == NULL || head->next == NULL) { printf("没有记录图书信息!\n"); system("pause"); return; } p=head; printf("\n\n\n"); printf("※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※\n"); printf("请输入要删除的书名;"); scanf("%s",&name); printf("----------------------------------------------------------------------\n"); printf("书名\t\t作者名\t\t编号\t出版单位\t出版时间\t类别\t存放位置\n"); printf("----------------------------------------------------------------------\n"); while(p->next) { t=p; p=p->next; /*转换到下一个结点*/ if(strcmp(name,p->bookname)==0) { flag=1; printf("%s\t%s\t%s\t%s\t%s\t%s\t%s\n",p->bookname,p->writer,p->classnumber,p->publisher,p->time,p->type,p->place); break; } } if(flag==1) { printf("是否删除该本图书信息(y/n)"); scanf("%s",ch); printf("----------------------------------------------------------------------\n"); if(strcmp(ch,"Y")==0||strcmp(ch,"y")==0) { t->next=p->next; printf("该书已删除!\n"); } else return; } else if(flag==0) printf("没找到那本书!\n"); system("pause"); } void modifybook(Book *head) /*修改图书信息*/ { system("cls"); int flag=0; char name[100],ch[10]; Book *p,*t; /* 如果表头为空 */ if(head == NULL || head->next == NULL) { printf("没有记录图书信息!\n"); system("pause"); return ; } p=head; printf("\n\n\n"); printf("※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※\n"); printf("请输入要修改的书名:"); scanf("%s",name); printf("--------------------------------------------------------------------\n"); while(p->next) { p=p->next; /*切换到下一个结点*/ if(strcmp(name,p->bookname)==0) { flag=1; t=p; printf("书名\t\t作者名\t\t编号\t出版单位\t出版时间\t类别\t存放位置\n"); printf("--------------------------------------------------------------------\n"); printf("%s\t%s\t%s\t%s\t%s\t%s\t%s\n\n",p->bookname,p->writer,p->classnumber,p->publisher,p->time,p->type,p->place); } } if(flag==1) { printf("--------------------------------------------------------------------\n"); printf("\t\t是否修改该本图书信息(y/n):"); scanf("%s",ch); printf("\t--------------------------------------------------------------------\n"); if(strcmp(ch,"Y")==0||strcmp(ch,"y")==0) { int c; printf("\t\t【1】书名\n"); printf("--------------------------------------------------------------------\n"); printf("\t\t【2】作者\n"); printf("--------------------------------------------------------------------\n"); printf("\t\t【3】编号\n"); printf("--------------------------------------------------------------------\n"); printf("\t\t【4】出版单位\n"); printf("--------------------------------------------------------------------\n"); printf("\t\t【5】出版日期\n"); printf("--------------------------------------------------------------------\n"); printf("\t\t【6】类别\n"); printf("--------------------------------------------------------------------\n"); printf("\t\t【7】存放位置\n"); printf("--------------------------------------------------------------------\n"); printf("\t请输入你要修改的内容;"); scanf("%d",&c); printf("--------------------------------------------------------------------\n"); p=t; switch(c) { case 1: printf("\t请输入书名:"); scanf("%s",p->bookname); break; case 2: printf("\t请输入作者:"); scanf("%s",p->writer); break; case 3: printf("\t请输入编号:"); scanf("%s",p->classnumber); break; case 4: printf("\t请输入出版单位:"); scanf("%s",p->publisher); break; case 5: printf("\t请输入出版日期:"); scanf("%s",p->time); break; case 6: printf("\t请输入类别:"); scanf("%s",p->type); break; case 7: printf("\t请输入存放位置:"); scanf("%s",p->place); break; } printf("--------------------------------------------------------------------\n"); printf("\t恭喜大佬修改成功!!!\n"); } } else if(flag==0) printf("对不起,该书库没有该书\n"); system("pause"); } void searchbook(Book *head) /*查询图书信息*/ { system("cls"); int choose,flag=0; Book *p; char b[100]; /* 如果表头为空 */ if(head == NULL || head->next == NULL) { printf("没有记录图书信息!\n"); system("pause"); return ; } do { system("cls"); printf("\n\n\n"); printf("※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※\n"); printf("\t\t1.按书名查找\n"); printf("----------------------------------------------------------------------\n"); printf("\t\t2.按作者名查找\n"); printf("----------------------------------------------------------------------\n"); printf("\t\t3.按编号查找\n"); printf("----------------------------------------------------------------------\n"); printf("\t\t4.按出版单位查找\n"); printf("----------------------------------------------------------------------\n"); printf("\t\t返回主菜单(其他数字)\n"); printf("----------------------------------------------------------------------\n"); printf("\t\t请输入您的选择:"); scanf("%d",&choose); printf("----------------------------------------------------------------------\n"); p=head; if(choose==1) { printf("输入所查书名:"); scanf("%s",b); printf("----------------------------------------------------------------------\n\n"); while(p->next) { p=p->next; /*转换到下一个结点*/ if(strcmp(b,p->bookname)==0) /*判断是否找到并输出*/ { flag=1; printf("※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※\n"); printf("书名\t作者名\t编号\t出版单位\t出版时间\t类别\t存放位置\n"); printf("----------------------------------------------------------------------\n"); printf("%s\t%s\t%s\t%s\t%s\t%s\t%s\n",p->bookname,p->writer,p->classnumber,p->publisher,p->time,p->type,p->place); } } if(flag==0) printf("不存在该信息\n"); } else if(choose==2) { printf("输入所查作者名:"); scanf("%s",b); printf("----------------------------------------------------------------------\n\n"); while(p->next) { p=p->next; /*转换到下一个结点*/ if(strcmp(b,p->writer)==0) /*判断是否找到并输出*/ { flag=1; printf("※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※\n"); printf("书名\t作者名\t编号\t出版单位\t出版时间\t类别\t存放位置\n"); printf("----------------------------------------------------------------------\n"); printf("%s\t%s\t%s\t%s\t%s\t%s\t%s\n",p->bookname,p->writer,p->classnumber,p->publisher,p->time,p->type,p->place); } } if(flag==0) printf("不存在该信息\n"); } else if(choose==3) { printf("输入所查编号:"); scanf("%s",b); printf("----------------------------------------------------------------------\n\n"); while(p->next) { p=p->next; /*转换到下一个结点*/ if(strcmp(b,p->classnumber)==0) /*判断是否找到并输出*/ { flag=1; printf("※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※\n"); printf("书名\t作者名\t编号\t出版单位\t出版时间\t类别\t存放位置\n"); printf("----------------------------------------------------------------------\n"); printf("%s\t%s\t%s\t%s\t%s\t%s\t%s\n",p->bookname,p->writer,p->classnumber,p->publisher,p->time,p->type,p->place); } } if(flag==0) printf("不存在该信息\n"); } else if(choose==4) { printf("输入所查出版单位:"); scanf("%s",b); printf("----------------------------------------------------------------------\n\n"); while(p->next) { p=p->next; /*转换到下一个结点*/ if(strcmp(b,p->publisher)==0) /*判断是否找到并输出*/ { flag=1; printf("※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※※\n"); printf("书名\t作者名\t编号\t出版单位\t出版时间\t类别\t存放位置\n"); printf("----------------------------------------------------------------------\n"); printf("%s\t%s\t%s\t%s\t%s%s\t%s\n",p->bookname,p->writer,p->classnumber,p->publisher,p->time,p->type,p->place); } } if(flag==0) printf("不存在该信息\n"); } else return; system("pause"); }while(1); } int printfbook(Book *head) /*显示所有图书信息*/ { Book *p; system("cls"); /* 如果表头为空 */ if(head == NULL || head->next == NULL) { printf("没有记录图书信息!\n"); system("pause"); return 0; } p=head->next; printf("\n\n\n"); printf("**********************************************************************************\n"); printf(" 图书列表 \n"); printf("----------------------------------------------------------------------------------\n"); printf("书名\t作者\t编号\t出版单位\t出版时间\t类别\t存放位置\n"); printf("----------------------------------------------------------------------------------\n"); do { printf("%s\t%s\t%s\t%s\t%s\t%s\t%s\n\n",p->bookname,p->writer,p->classnumber,p->publisher,p->time,p->type,p->place); p=p->next; /*转换到下一个结点*/ }while(p!=NULL); system("pause"); } int main(void) { system("cls"); Book *head=NULL; readbookdata(&head); int choice,z,c; printf("\n\n\n"); printf("\t※※※※※※※※※※※※※※※※※※※※※※※※※※※※\n"); printf("\t\t\t欢迎光临图书信息管理系统\n"); printf("\t--------------------------------------------------------\n"); printf("\t\t\t【1】游客\n"); printf("\t\t\t【2】管理员\n"); printf("\t\t\t【3】退出系统\n"); printf("\t--------------------------------------------------------\n"); while(printf("\t\t\t请选择身份:")&&scanf("%d",&c)!=EOF) { if(c==1) { showmenu2(); while (printf("\t请输入选择项(1-3):")&&scanf("%d",&choice)!=EOF) { switch (choice) { case 1: /*查询图书信息*/ searchbook(head); break; case 2: /*显示所有图书信息*/ printfbook(head); break; case 3: /*返回登录界面*/ main(); break; case 4: exit(0); default: printf("\t输入错误!!!\n"); system("pause"); break; } showmenu2(); } } else if(c==2) { z=mima(); showmenu1(); while (printf("\t请输入选择项(1-6):")&&z==1&&scanf("%d",&choice)!=EOF) { switch (choice) { case 1: /*录入图书信息*/ addnewbook(&head); break; case 2: /*删除图书信息*/ deletebook(head); break; case 3: /*修改图书信息*/ modifybook(head); break; case 4: /*查询图书信息*/ searchbook(head); break; case 5: /*显示所有图书信息*/ printfbook(head); break; case 6: /*返回登录界面*/ main(); break; case 7: /*保存数据并退出系统*/ savebookdata(head); exit(0); default: printf("\t输入错误!!!\n"); system("pause"); break; } showmenu1(); } } else if(c==3) exit(0); else { printf("\t\t\t输入错误!!!\n\n"); } } return 0; }
运行结果
这里提供的是管理员身份
这里提供游客身份(供选择的功能相对管理员少)
后面大家就可以自行输入对应功能前的序号,实现此系统的功能
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